Market Efficiency vs. Behavorial Finance
From Dickinson College Wiki
Market Efficiency
- Market Efficieny says that the market occasionally gets things wrong, but it is 90% efficient.
- Something may be statistically significant but not economically significant, so you cannot profit off the information.
- There are a handful of funds that outperform a broad index of stock, however, there is no way to tell in advance which ones these are going to be.
Behavioral Finance
- Dick Thaler, a behavioralist at the University of Chicago, believes that markets could be 90% inefficient.